Microsoft ASP.NET Web API 2.2 Help...

5.2.3

The ASP.NET Web API Help Page automatically generates help page content for the web APIs on your site. Visitors to your help page can use this content to learn how to call your web APIs. Everything generated by the help page is fully customizable using ASP.NET MVC and Razor. ASP.NET Web API Help Page is a great addition to any ASP.NET Web API project.